package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.RequiredArgsConstructor;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


@RequiredArgsConstructor
@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    private final AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params,Long catelogId) {
        String key= (String) params.get("key");
        QueryWrapper<AttrGroupEntity> queryWrapper=new QueryWrapper<AttrGroupEntity>();
        if(StringUtils.isNotEmpty(key)){
            queryWrapper.and((obj)-> {
                obj.eq("attr_group_id", key).or().like("attr_group_name", key);
            });
        }
        if (catelogId == 0) {
            IPage<AttrGroupEntity> page = this.page(
                    new Query<AttrGroupEntity>().getPage(params),
                    queryWrapper
            );

            return new PageUtils(page);
        }else{
            queryWrapper.eq("catelog_id", catelogId);
            IPage<AttrGroupEntity> page = this.page(
                    new Query<AttrGroupEntity>().getPage(params),
                    queryWrapper
            );
            return new PageUtils(page);
        }
    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        // 1.查询分组信息
        QueryWrapper<AttrGroupEntity> queryWrapper=new QueryWrapper<>();
        queryWrapper.eq("catelog_id", catelogId);
        List<AttrGroupEntity> groupEntities = this.list(queryWrapper);
        List<AttrGroupWithAttrsVo> groupWithAttrsVos = groupEntities.stream().map(attr -> {
            AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(attr, attrGroupWithAttrsVo);
            List<AttrEntity> relationAttr = attrService.getRelationAttr(attr.getAttrGroupId());
            attrGroupWithAttrsVo.setAttrs(relationAttr);
            return attrGroupWithAttrsVo;
        }).collect(Collectors.toList());
        return groupWithAttrsVos;
    }

}